#!/usr/bin/perl
use utf8;

print "please input a number:\n";
chomp( $number_a = <STDIN> );
print "please input another number:\n";
chomp( $number_b = <STDIN> );
$sum_of_a_and_b = $number_a * $number_b;
print "the sum equals ", $sum_of_a_and_b, "\n";